Grain-car door



(No Model.)

S. W. GROSH.

GRAIN GAR DOOR.

Patented July 12, 1892.

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UNITED STATES PATENT OFFICE.

SILAS \V. GRO SH, OF DECATUR, ILLINOIS.

GRAIN-CAR DOOR.

SPECIFICATION forming part of Letters Patent No. 478,748, dated July 12,1892.

Application filed November 3, 1891. Serial No. 410,762. (No model.)

To all whom it may concern.-

Be it known that I, SILAS W. Gaosn, of Decatur, in the county of Maconand State of Illinois, have invented certain new and useful Improvementsin Grain-Car Doors, of which the following is a specification.

The object of this invention is to provide a strong, durable, andcomparatively cheap grain-door, which may be easily secured in positionin a car and which may be opened with little effort and without dangerof breakage.

To this end the invention consists in the details of construction andcombination of parts hereinafter set forth and claimed.

In the drawings accompanying and forming a part of this specification,Figure l is a front elevation of a door and the grooved ways in which itis held, a fragment of a car being shown in connection and the doorbeing slightly raised. Fig. 2 is a plan of the lever used to fasten thedoor and to give it initial opening movement. Fig. 3 is a side elevationof the lever, showing the lock-block with which it co-operates incross-section. Fig. 4 is a perspective representation of a grooved way,showing the relation of the same to the car-door opening. Fig. 5 is aperspective representation of an end of the door. Fig. 6 is a planoutline of a grooved way and the contiguous part of the door. Fig.7 is aplan of the lock-block.

The door 1 has cleats 2, preferably of metal, and each cleat has a setof wedge-like projections 3. The grooved ways each comprise an outerwall 4, having recesses 5, adapted to admit the projections 3 of thedoor, an inner wall 4, having ledge 4 and the plate 4i, (seen only inFig. 6,) by means of which the way is secured to the car. Sides of thecar are shown at 6, and a sill thereof at 7.

At 8 is seen a lock-block, which is let into and secured to the car-silland which has the concave groove 8 and the lock-pin 8 crossing thegroove. The externally eccentric cam 9 connects pivotally with the doorat the bottom edge thereof and it bears against a plane part of thesurface of the lock-block. The internally-eccentric lock-finger 10 isintegrant wit-11 or rigidly secured to the cam 9,

but in a different vertical plane, and it is adapted to engage thelock-pin 8, as seen in Fig. 3. Handle 11 is secured to the cam andfinger, and it provides means for operating the same.

to be raised until the wedges are loose or started, after which it is aneasy matter to raise the door until the projections and the recessescoincide and then remove it entirely.

hen the finger is in the recess, it secures the bottom of the dooragainst the bulging tendency of the contents of the car, as is evidentfrom Fig. 2 of the drawings.

I claim l. A door for grain-cars, having a set of wedge-likeprojections, grooved ways connected with the sides of the door-openingand having recesses adapted to receive the projections of the door, anda lever pivoted on the door at the lower edge thereof and having aneccentric bearing adapted to the sill, as set forth.

2. A door for grain-cars, having a set of wedge-like projections,grooved ways connected with the sides of the door and having recessesadapted to receive the projections of the door, and a lever connectedpivotally with the door at the lower edge thereof and having an openingeccentric cam and a closing eccentric finger, as set forth.

3. The combination of a door-opening, a door adapted to be movedvertically therein, a recess in the door-sill at or near the centerthereof, such recess having a transverse pin or bearing, a raising-camon the lower edge of the door, a cam-finger adapted to enter the recessand engage the pin, and a lever [00 to operate the cams, whereby thethrow of the In testimony whereof I sign my name in the lever in onedirection will tend. to open the presence of two subscribing Witnesses.door and the opposite throw will cause the SILAS W. GROSH. finger toenter the recess and engage the p111, thereby locking the door closedand securing Witnesses: it against the bulging tendency of the con-BARTON S. TYLER,

tents of the car. FRANK M. PRATT.

